<div class='verticalVolumeBar'>
    <div class='volumeBackground'
         ng-click='onClickVolume($event)'
         ng-mousedown='onMouseDownVolume()'
         ng-mouseup='onMouseUpVolume()'
         ng-mousemove='onMouseMoveVolume($event)'
         ng-mouseleave='onMouseLeaveVolume()'>
        <div class='volumeValue'></div>
        <div class='volumeClickArea'></div>
    </div>
</div>
